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Every lesson is a five-minute mystery: Lumi made one mistake, and you find it.

$Colorful measuring jugs pouring juice into a rocket dispenser$ 7 lessonsMathsBODMAS, fractions, decimal division, and number riddlesChoose a lesson

A magnifying glass inspecting punctuation clues on a detective desk

7 lessonsEnglishGrammar, punctuation, reading, and clear writingChoose a lesson

Plants, a magnet, and a beaker arranged as evidence in a moon laboratory

8 lessonsScienceExperiments, evidence, systems, and common misconceptionsChoose a lesson

A playful word-sorting machine matching tiles with picture cards

7 lessonsLanguageWord meanings, roots, analogies, and figurative languageChoose a lesson